You raised. Now you have 18 months to prove it.
TantraDev is the engineering partner for funded startups. We put senior engineers on your problem, ship production code by week 2, and build systems that hold up under load and survive the technical due diligence your next round depends on — from seed through Series B. No offshore bench, no juniors learning on your runway.
The right engineering for where you actually are
A seed startup and a Series B platform have nothing in common except the word “startup.” We meet you at your stage and build accordingly.
An MVP that survives PMF
You need to find product-market fit before the runway runs out — without shipping a prototype that collapses the moment it does. We build a lean v1 with the seams in the right places, so the things you'll have to scale later aren't load-bearing duct tape.
Scale the team and the architecture
The pressure shifts from 'does it work' to 'can it carry 10x and a growing team'. We embed a dedicated senior pod that ships alongside your engineers, hardens the architecture, and leaves your codebase in a state your next hires can move fast in.
Platform hardening and cost control
Now it's reliability, compliance, and a cloud bill that's growing faster than revenue. We harden the platform, implement the controls auditors expect, and run a cost-optimisation pass — with fractional CTO leadership steering the technical strategy.
What funded founders come to us with
These are the patterns on the first call. If one or two sound familiar, an architecture audit will save you weeks — and probably a bad raise.
Runway pressure vs. hiring speed
You have 18 months and senior engineers take 3 months to hire and 2 more to be useful. We're shipping production code by week 2 — no req-to-offer lag, no onboarding tax.
A prototype that won't reach the next round
The build that got you funded was made to demo, not to scale. Before it becomes the thing that fails diligence, we re-architect the load-bearing parts without halting the roadmap.
No senior engineering leadership
You're making architecture and hiring decisions with no one technical in the room who's done it before. A fractional CTO gives you that judgment without a six-figure full-time hire.
Technical due diligence looming
Your next raise will put an external reviewer inside your repo. We build the way diligence expects — tests, observability, documented architecture — so the review is a formality, not a fire drill.
A cloud bill that's ballooning
Spend is climbing faster than usage and nobody's sure why. We run a cost-optimisation pass — right-sizing, autoscaling, killing idle infrastructure — and usually claw back a meaningful chunk of the monthly burn.
A cheap agency build that needs a rewrite
An offshore shop shipped something that technically runs and is now impossible to extend. We've inherited enough of these to know what to salvage, what to replace, and how to do it without a big-bang rewrite.
No senior engineering leadership is the one that compounds the rest. A fractional CTO fixes the decision-making before the architecture goes sideways.
How we work with funded teams
Built for founders who are accountable to a board and a clock. Transparent, fixed-scope, and engineered so you're never locked in.
Free architecture audit first
Before any contract, we review your system or spec and send back a written assessment — what's solid, what's at risk, and what we'd do first. No charge, no obligation.
Fixed-scope SOW
You get a clear statement of work with defined deliverables and a price, not an open-ended hourly meter. You know what you're buying before we start writing code.
Embedded senior pods
A 2-6 engineer pod works inside your team — same Slack, same standups, same git history. No account managers relaying requirements to a faceless offshore bench.
Weekly demos
Every week you see working software, not a status deck. Progress is visible, course-corrections happen early, and there are no quarter-end surprises.
30-day exit
Scale the pod up or down — or end the engagement — with 30 days' notice. No lock-in, no penalty. We earn the next month every month.
IP transfer + diligence-ready docs
All IP is yours, full stop. You leave with documented architecture, runbooks, and a handover package that stands up to investor technical review.
We've done this at scale
Not a deck of logos — production systems carrying real load for real companies.
Questions funded founders ask
You have a clock. Let's not waste it.
Send us your system or your spec. We'll review it and come back with a written, one-page architecture audit — what's solid, what's at risk, and what we'd build first. No charge, no obligation.